Steven Liu

I’m a Senior Full Stack Software Engineer focused on architecting and building cloud-native, scalable enterprise systems across FinTech, healthcare technology, and SaaS. I combine deep frontend engineering with backend architecture to deliver measurable business impact in both fast-paced startup and enterprise consulting environments.

At Cognizant, I architected and deployed cloud-native microservices on AWS using ECS and Lambda, improving system scalability by 40%. I also developed React and TypeScript frontends for internal dashboards, cutting page load times by 50%, and designed RESTful APIs with Node.js and Express.js with OAuth 2.0 authentication to achieve 99.9% uptime.

I lead reliability and operational excellence through automation and observability. I built CI/CD pipelines with GitHub Actions and Docker to reduce deployment cycles from weekly to daily, engineered distributed data workflows with Kafka and PostgreSQL for 1M+ transactions daily with sub-100ms latency, and reduced MTTR by 30% using Datadog and Prometheus.

Previously, at Yooz, I delivered SaaS platform features that increased user engagement by 25% and architected event-driven microservices with RabbitMQ and PostgreSQL for real-time document processing. Earlier at Intiva Health, I built HIPAA-compliant systems and ensured WCAG 2.0 accessibility in React applications—so I’m consistently focused on secure, high-performance experiences that scale.